diff --git a/test/auth/fixtures/oauth.json b/test/auth/fixtures/oauth.json
index 0c8e4ac6f..7f2a80198 100644
--- a/test/auth/fixtures/oauth.json
+++ b/test/auth/fixtures/oauth.json
@@ -167,5 +167,16 @@
       "request_uri": "https://www.request.uri",
       "expires_in": 86400
     }
+  },
+  {
+    "scope": "https://test-domain.auth0.com",
+    "method": "POST",
+    "path": "/oauth/par",
+    "body": "client_id=test-client-id&response_type=code&redirect_uri=https%3A%2F%2Fexample.com&request=eyJhbGciOiJSUzI1NiIsInR5cCI6Imp3dCIsImtpZCI6IjNreHdsVm5ZdW5oVUIyQVFYLVFYVUVZV0oxSlRyd08tQUpBMmc3MVVfa0UifQ.eyJpc3MiOiJkUkRDaWNobkk1YUpLcHZqYVJNZG0yUWdTRUxycVlHVSIsImF1ZCI6Imh0dHBzOi8vcGV1Mi10ZXN0LmV1LmF1dGgwLmNvbS8iLCJjbGllbnRfaWQiOiJkUkRDaWNobkk1YUpLcHZqYVJNZG0yUWdTRUxycVlHVSIsInJlc3BvbnNlX3R5cGUiOiJjb2RlIiwicmVkaXJlY3RfdXJpIjoiaHR0cDovL2xvY2FsaG9zdDozMDAwIiwibm9uY2UiOiIzMjNmMWYxNDIxMjI3Y2U1OGE3M2IxOTVkZWRjMDRmOCIsImlhdCI6MTcxMjMzNTMyMn0.E9ZAju2emT9KyR-asklRydgT0q2GmL3u90enSHvpF1PVn7zKqHBW9i6o4-QlIy-efHAsaGikMsysRMbp2xNVl5p9SFn-mZXlxrtIe2vKwbIRrknCT29CRyxX7Ulvv9840YK7N8BHoah8PRuAfJMq-e0jvCgfxuxBJC8uXBY2S43_YpLe2SKkmb-E9APwKh-55Mx-DPFVUKm1hasZ9GnRSZUb9F4aVB9Q8YndZ0uxKSjtPPwakDECHxSyA1yXQ7B1FrhcsZcTwneTDbmzepodStNboBdxmDVjXQggfyPeqeeeW5cCpJAhVnoo740TjwgsncJ9ftymR2uLP_fexru6KA&client_secret=test-client-secret",
+    "status": 200,
+    "response": {
+      "request_uri": "https://www.request.uri",
+      "expires_in": 86400
+    }
   }
 ]
diff --git a/test/auth/oauth.test.ts b/test/auth/oauth.test.ts
index ec61fc9f3..f6b4cb1a2 100644
--- a/test/auth/oauth.test.ts
+++ b/test/auth/oauth.test.ts
@@ -328,6 +328,24 @@ describe('OAuth', () => {
         },
       });
     });
+
+    it('should send request param when provided', async () => {
+      const oauth = new OAuth(opts);
+      await expect(
+        oauth.pushedAuthorization({
+          client_id: 'test-client-id',
+          response_type: 'code',
+          redirect_uri: 'https://example.com',
+          request:
+            'eyJhbGciOiJSUzI1NiIsInR5cCI6Imp3dCIsImtpZCI6IjNreHdsVm5ZdW5oVUIyQVFYLVFYVUVZV0oxSlRyd08tQUpBMmc3MVVfa0UifQ.eyJpc3MiOiJkUkRDaWNobkk1YUpLcHZqYVJNZG0yUWdTRUxycVlHVSIsImF1ZCI6Imh0dHBzOi8vcGV1Mi10ZXN0LmV1LmF1dGgwLmNvbS8iLCJjbGllbnRfaWQiOiJkUkRDaWNobkk1YUpLcHZqYVJNZG0yUWdTRUxycVlHVSIsInJlc3BvbnNlX3R5cGUiOiJjb2RlIiwicmVkaXJlY3RfdXJpIjoiaHR0cDovL2xvY2FsaG9zdDozMDAwIiwibm9uY2UiOiIzMjNmMWYxNDIxMjI3Y2U1OGE3M2IxOTVkZWRjMDRmOCIsImlhdCI6MTcxMjMzNTMyMn0.E9ZAju2emT9KyR-asklRydgT0q2GmL3u90enSHvpF1PVn7zKqHBW9i6o4-QlIy-efHAsaGikMsysRMbp2xNVl5p9SFn-mZXlxrtIe2vKwbIRrknCT29CRyxX7Ulvv9840YK7N8BHoah8PRuAfJMq-e0jvCgfxuxBJC8uXBY2S43_YpLe2SKkmb-E9APwKh-55Mx-DPFVUKm1hasZ9GnRSZUb9F4aVB9Q8YndZ0uxKSjtPPwakDECHxSyA1yXQ7B1FrhcsZcTwneTDbmzepodStNboBdxmDVjXQggfyPeqeeeW5cCpJAhVnoo740TjwgsncJ9ftymR2uLP_fexru6KA',
+        })
+      ).resolves.toMatchObject({
+        data: {
+          request_uri: 'https://www.request.uri',
+          expires_in: 86400,
+        },
+      });
+    });
   });
 });